Railway-crossing.



C. J. GRIFFITH.

RAILWAY CROSSING.

APPLICATION mu) JAN. 20, 1913.

Patented Dec. 7, 1915* cOLUMmA TLANOGRAIH CO-,\'IASHINGTON, n. c.

' UNITED @TAIE@ PATENT UFFIFF.

CHARLES J'. GRIFFITH, OF ST. LOUIS, MISSOURI.

RAILWAY- CROSSING.

Application filed January 20, 1913.

To all whom it may concern:

Be itknown that I, CHARLES J. GRIFFITH, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a new and useful Railway-Crossing, of which the following is a specification.

My invention relates to improvements in railway crossings wherein the four crossing rails are formed integral, thereby providing a construction devoid like fastening devices, and providing a very strong, rigid structure which is well able to withstand the vibration and pounding incident to the passage of car wheels over the intersecting rails.

Further objects of my invention are, to construct a railway crossing having rails which are substantially hollow and of ap proximately inverted V-shape in cross section, and further to arrange hardened metal inserts at the points where the flange grooves in the tops of the rails intersect each other.

To the above purposes my invention consists in certain novel features of construction and arrangement of parts hereinafter more fully described, claimed and shown in the accompanying drawings, in which Figure 1 is a top plan view of a pair of intersecting rails constructed in accordance with my invention, a portion of one of said rails being shown in horizontal section. Fig. 2 is a cross section taken approximately on the line 2-2 of Fig. 1. Fig. 3 is a cross section of a modified form of the intersecting rails. Fig. 4: is a cross section of a further modification. Fig. 5 is a cross section of a further modified form of the rail. Fig. 6 is a detail section showing the bottom of the flange groove inclined upwardly toward the point where the flange grooves intersect. Fig. 7 is a plan view showing one of the hardened metal inserts in the tops of the rails at the point where the same intersect. Fig. 8 is a cross section taken approximately on the line 88 of Fig. 7.

As shown in the drawings, each rail of my improved crossing has a body portion which is substantially of inverted V-shape in cross section, said body portion comprising a pair of inclined webs or walls 10, and formed integral with the lower ends thereof are base flanges 11.

Formed integral with the upper ends of the webs or walls 10 is a ball 12 and a flange guard 13, and between said ball and flange Specification of Letters Patent.

of bolts, rivets and 'diately adjacent to the located between the inclined i In the modified form Patented Dec. 'Y, 1915. Serial No. 743,138.

guard is formed a flange groove 14. Four of the rails so formed are cast integral with each other to form a crossing, and formed integral with the ends of said rails are extensions 15 which are adapted to overlap" and receive the ends of ordinary track rails 16.

Immediately adjacent to the points where 'the rails intersect the walls'or webs 10 are formed upright or vertical, as designated by 17, thereby providing'openings 18 immepoints of intersection, and which openings are adapted to receive core blocks which support the cores walls or webs 10 when the crossing is cast.

shown in Fig. 3 the base flanges 11 extend outwardly from the lower ends of the webs or walls 10, and in the modification shown inFig. 4 thewalls or webs 10 are'tied together by a horizontally disposed web 19.

In the modification shown in Fig. 5 the upper ends of the inclined webs or walls 10 unite with a short, vertically disposed web 20, with the upper end of which is formed integral the ball and flange guard.

In the modification illustrated in Fig. 6 the bottom of the flange groove 14: is gradually inclined upward toward the point where said grooves intersect, and which construction prevents the wheel from dropping into the intersecting groove during the passage of the wheel over the crossing for the reason that the flange of the wheel rides upon the elevated bottom of the flange groove.

In Figs. 7 and 8 I have illustrated the crossing rails as being provided with hardened metal inserts 21 positioned in the tops of the rails at the points where the same intersect, said inserts being provided with flange grooves which coincide with the flange grooves 14. This construction is designed to decrease the wear which ordinarily occurs at the points where the flange grooves intersect.

The hardened metal inserts are only used when the crossing is cast. and said inserts are positioned in the mold before the metal of which the crossing is formed is poured.

A railway crossing of my improved construction is comparatively simple, can be readily cast in a single piece, is very strong and substantialand can be produced much 1 and a flange, and

rigidly fixed in the 1 Copies of this patent may be obtained for five cents each, by addressing the comprising cheaper than a, crossingmade up of a number of pieces which are united by means of bolts or rivets. I

It will be readily understood that minor changes'in the size, form and construction of the various parts of my improved rail way crossing can be made and substituted for those herein shown without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

Iclaimr 1. The hereindescribed railway crossing intersecting crossing rails formed integral with each other, each rail comprising a pair of webs, portions of which are parallel and "other portions being inclined and united at their upper ends, a'ball tops of the balls and flanges of said rails at the points where the same intersect and which inserts are held in position by the metal of which the rails are formed.

2. The hereindescribed railway crossing comprising intersecting crossing rails formed integral with each other, each rail comprising a pair of webs, portions of which are parallel and other portions being inflan'ges of said rails hardened metal inserts,

clined and united at their upper ends, a ball and a flange, and hardened metal inserts rigidly fixed in the tops of the balls and at the points where the same intersect, which inserts are provided with flange grooves and are held in the rails by the metal of which 3. The hereindescribed railway crossing comprising intersecting crossing rails formed integral with each other, each of which rails comprises a pair of webs, portions of which are parallel and other portions being inclined and united at their upper ends, base flanges integral therewith, a ball and flange guard integral with the upper ends of the inclined webs and harsaid rails are formed. i

dened metal inserts seated in the tops of said rails at the points where the same intersect, which inserts are rigidly held in position by the metal of which the rails are formed.

In testimony whereof I hereunto aiiix my signature in the presence of two witnesses. this 17th day of January, 1918.

CHARLES J. GRIFFITH.

Witnesses:

M. P. SMITH, M. A. HANDEL,

Commissioner of Patents.

Washington, D. G. 

